Explain the steps of converting food into energy, Biology

Assignment Help:

Explain the steps of converting food into energy.

There are four steps to convert food into energy:

a) Ingestion, mastication and swallowing : Ingestion or taking in of food and mastication are done by mouth and teeth with the help of the tongue. The pharynx and oesophagus help in swallowing.

b) Digestion : Takes place in the stomach and upper part of the small intestine.

c) Absorption : Food is absorbed in small intestine. Water is absorbed in the large intestine.

d) Excretion : Large intestine helps in excretion of residue in the form of faeces or stool.

Additional organs help in the process of digestion : Salivary glands supply saliva. Liver supplies bile. Bile salts play important role in fat digestion. Pancreas secretes insulin from islets of langerhans. Insulin helps the tissues to use sugar for energy.

 


Related Discussions:- Explain the steps of converting food into energy

Loss-of-function mutations, Choose the correct answer. A. The phenotype det...

Choose the correct answer. A. The phenotype determines the genotype. B. True-breeding individuals are produced by repeated backcrossing. C. Recessive alleles are usually loss-of-fu

Applications of closed heart surgery, Applications :  The first operation ...

Applications :  The first operation conducted was ligation of a patent ductus arteriosus through a left thoracotomy. Same approach is used for repair of coarctation of the aorta,

Cephalisation - metazoa, Cephalisation - Metazoa Bilateral animals whe...

Cephalisation - Metazoa Bilateral animals when creeping or swimming, have a tendency to keep the same end of the body forward and the same surface down towards the substratum.

Define muscular strength component for physical fitness, Define Muscular st...

Define Muscular strength component for physical fitness? It is the ability of a muscle to exert force for a brief period of time. Upper-body strength, for example, can be measu

What is meant by unsaturation or saturation of oils and fats, Q. What is me...

Q. What is meant by unsaturation or saturation of oils and fats? When it is said that a triglyceride is saturated it means that in its molecule the carbon chain is bound in its

Define class turbellaria - flatworms, Define Class Turbellaria - Flatworms ...

Define Class Turbellaria - Flatworms ? Members of these two Classes are known as the flukes. Flukes are parasitic flatworms that inhabit tropical areas like Southeast Asia and

Genetic resources of biodiversity, Q. Genetic resources of biodiversity? ...

Q. Genetic resources of biodiversity? Genetic diversity or the gene pools are important for promoting and ensuring high agricultural yield. Genetic diversity provides crops wit

What is the difference between octopuses and mussels, What is the differenc...

What is the difference between octopuses and mussels regarding their circulatory systems? How does that difference influence the mobility of these animals? Cephalopod molluscs,

Explain protein need in postoperative nutritional care, Explain the Protein...

Explain the Protein requirement in Postoperative Nutritional Care? Increased catabolism leads to protein deficiency and hence negative nitrogen balance which amounts to loss of

Surface markings of the heart, The Upper Border of the Heart A:  Mark a ...

The Upper Border of the Heart A:  Mark a point on the lower border of the left second costal cartilage 1.2 cm away from the sternal margin. B:  Mark a point on the upper bord

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd